Well Water In Pool Turns Green

Your well water probably has some dissolved copper in it.

Well water in pool turns green.

Other metals you may find in your pool especially when using well water are silver that turns to black iron that turns brown rust and manganese and magnesium that turn to purple when chlorine is added to pool water with compounds of these heavy metals. This copper can occur naturally in the water or come from copper plumbing that is leeching into the pool. Test your swimming pool water. However the pool may turn green after shocking which is caused by an increased amount of dissolved copper in the water.

When chlorine levels drop below 1 ppm it can cause algae to grow in the pool turning the pool water green. Copper turns to a light green color when oxidized by chlorine inside your pool. Use a chemical test kit to test the chlorine and ph levels and determine the extent of the problem. Shocking a pool should help clear up a green pool if the water is green because of algae or other issues.

If the pool has been brushed and shocked it will take a few days to filter out the green and for water clarity to improve. Where i live we have lots of iron in the wells and peoples pools turn orange after they add chlorine the first time.